Migatronic 140 mono

  1. Nev Polley New Member

    Messages:
    2
    Location:
    King's Lynn, Norfolk
    Hello All

    Thank you for letting me join.

    I have a question about the above please.

    Hopefully some of you kind people maybe able to advise me?

    I used the above the other day welding some 5mm steel box. Mig seemed down on power then stopped working altogether.

    There is power to the machine both machine fuses are okay, switch has no power to it!

    I know the switch works as I have checked it with a multi meter and there is contourunity.

    I attach photos of various components inside the welder, just wondered if anyone knows how to test these parts with a multi meter before send I the control panel away for checking and repairing.

    Many thanks in advance!

    Nev
     
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  2. slim_boy_fat

    slim_boy_fat Forum Supporter

    Hi & welcome aboard. :waving: I'm not good with elektrickery :ashamed:, but I'd start by giving that a good clean out.

    When was it used last, before your latest welding attempts?
     
  3. 500e

    500e Always buy fire insurance a flood is hard to start

    Messages:
    4,567
    Location:
    SWest UK
    What switch has no power to it ?
     
  4. 500e

    500e Always buy fire insurance a flood is hard to start

    Messages:
    4,567
    Location:
    SWest UK
    @kraft said some time ago the 180 was a clone of the 140 dont know if he was correct so up to you
    upload_2020-7-26_13-47-44.png
     
  5. metalmelt Member

    Messages:
    100
    Location:
    UK
    And I thought you had magnetic attraction.
     
  6. slim_boy_fat

    slim_boy_fat Forum Supporter

    Modesty precludes my commenting :ashamed: and the lack of an emoji (one for @gaz1's thread) makes it tricky to know to interpret your post - but let's not drift:offtopic: quite so soon in the thread. ;) :)
     
    metalmelt likes this.
  7. metalmelt Member

    Messages:
    100
    Location:
    UK
    In a humerous way Slim.
     
  8. daedalusminos Member

    Messages:
    850
    Location:
    Norwich
    That schematic doesn't show the control board which would be connected at connector M1, but enough to start checking with power off...1st two things I'd check are continuity through the contactor coil (assuming it doesn't click) and continuity through the main transformer thermal trip (marked 150C).
    It would help to know what does/doesn't function when powered up and trigger pulled.
     
  9. Nev Polley New Member

    Messages:
    2
    Location:
    King's Lynn, Norfolk
    Thank you for help
    There is nothing what so every when its plugged in
    I have checked the supply into machine which has 240 v and both the internal and control panel fuse are fine
    kind regards Nev
     
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